$routeChangeError not called on $q.reject

Question

I have an Angular JS app with a Sails JS backend, and inside the routes (in app.js) I've got:

.state('app.detail', {
  url: "/detail",
  views: {
    'menuContent' :{
      templateUrl: "templates/detail.html",
      controller: 'UserUpdateCtrl',
      resolve: {
        auth: ["$q", "userData", function($q, userData) {
          var userInfo = userData.getUserInfo();
          if (userInfo) {
            return $q.when(userInfo);
          } else {
            return $q.reject({ authenticated: false });
          }
        }]
      },
    }
  }
})

(this is following this guide)

Now on the same file, I have the $routeChangeError:

.run(function($rootScope) {
  $rootScope.$on("$routeChangeError", function(event, current, previous, eventObj) {
    if (eventObj.authenticated === false) {
      $location.path("/login");
    }
  });

When debugging on chrome, I see that the function is defined, but not called.
What am I missing here?

Answer 1

Okay so under the assumption you are using the Angular UI router, I believe you are just translating the error handler incorrectly from the official one.

From the docs for $state:

Fired when an error occurs during transition. It's important to note that if you have any errors in your resolve functions (javascript errors, non-existent services, etc) they will not throw traditionally. You must listen for this $stateChangeError event to catch ALL errors.

And the parameters for this handler are different, try something like this:

$rootScope.$on("$stateChangeError", function(event, toState, toParams, fromState, fromParams, error) {
  if (error && !error.authenticated) {
    $location.path("/login");
  }
});

Here's a description of the parameters with the important one bolded:

• event – {Object} – Event object.
• toState – {State} – The state being transitioned to.
• toParams – {Object} – The params supplied to the toState.
• fromState – {State} – The current state, pre-transition.
• fromParams – {Object} – The params supplied to the fromState.
• error – {Error} – The resolve error object.